What kind of idiot would design a vehicle so that you have to take the spark plugs out through the passenger compartment? Well, all you Econoline drivers out there, Ford did! I spent five hours today changing out plugs, wires, rotor and distributor cap. I am no expert mechanic, that's for sure. Several of the plugs on the passenger side were really hard to get to. I keep telling my engineer sons that they need to keep in mind the poor slob who is going to repair whatever they design!